Tub tester



FIG. 1 is an isometric angled view of the tub tester.

FIG. 2 is a front view of the tub tester.

FIG. 3 is a back view of the tub tester.

FIG. 4 is a right side view of the tub tester.

FIG. 5 is a left side view of the tub tester.

FIG. 6 is a top view of the tub tester; and,

FIG. 7 is a bottom view of the tub tester.

CLAIM The ornamental design for a tub tester, as shown and described.